pleiades

NASA uses supercomputing to model the ocean climate and leverages an efficient means to perform the calculations. …

… “Using a total of 2.09 megawatts, or 233 megaflops per watt, Pleiades ranked number 22 on the November 2008 Green500 list. This ranking makes Pleiades the second-most powerful and energy-efficient supercomputer in the world. ” …